Exhaust or discharge nozzle



Sep@ mi@ www J. H. MLN

EXHAUST OR DISCHARGE NOZZLE Filed Jan. 26 1925 city of Peru, in thecounty Patented/SeE/Q, 1924.

Parar oFFlc JOHN H. MALIN, OF PERU', INDIANA.

EXHAUST 0R DISCHARGE NOZZLE.-

' Application led January 26, 1923. Serial No. 615,044.

Ta azz whom 4a may 00mm.-

Be it known that I, JOHN H.

MALIN, a citizen of the United States,

residing in Ithe of Miami and State of Indiana, have invented `a new EX-haust or Discharge Nozzle', and have described the'same in the followingspecifica tion and illustrated by the accompanying drawings.

My invention relates to that class of eX- haust nozzles used inlocomotives to produce draft, and the discharge or exhaust ports ininternal combustion engines. The main objects of this style of nozzleare `z--in steam locomotives to prolong the life or use of the presentnozzle tips or bushings, by being slotted as specified, if so desired;to increase the draft by assisting the expansion of the exhaust; toreduce the back pressure in the'cylinders by increasing the area of theexhaust opening; to makethe repairs on machinery and flues. lighter; andto save fuel by a more even draft Enin'ternal combustion engines, toreduce back pressure, to

reduce the'loud or sharp exhaust, and to Save gas or fuel. To do this Imake use of rectangular longitudinal slots extending the full length,of.uniform width, and equally spaced apart, the number and size of whichmay vary according to result desired.

My drawings show the manner in which theseslots are to be made. Figure lshows a plan view, While Figure 2 shows a crosssectional view throughthe center. This nozzle is a cylindrical iron casting or hollow shell,conforming to the opening in the cylinder casting or nozzle stand. Aslot With walls as described, has a retaining poweron matter orsubstance passing through,hold ing and retaining th'e volume in perfectand 'A compact form from entrance to exit; the value of the slot isdetermined by the depth of the side walls as retaining power. A groovebeing,r a passage for substance or matter, and having no retainingpower, the side walls being rounding or flaring, do not hold or retainmatter tov any particular or prescribed form; As compared with thenozzles now in use in locomotives this nozzle produces a greater contactwith the gases in the smoke box because ofthe increased area of theopening resulting in a better and more uniform draft. y. i

These slots permit a greater velocity of the exhaust steam or gases asthe case may be by decreasing `the resistance thereby causing a lessviolent or freer discharge.

I claim for my invention:

As an article of manufacture, an exhaust vnozzle for locomotives andinternal combustion engines, and the like, wherever back pressure isfound, or a drafting force required, having a uniform bore from end toend, and having equi-distant longitudinal slots therein, of uniformdepth, extending the full length of the nozzle, each of s aid slotshaving equal and parallel side walls, and a back wall at right anglesthereto.

fitness my signature at Peru, ndiana.

' JOHN H. MALIN.

